Fobney Lock is a lock on the River Kennet in the Small Mead area of Reading in the English county of Berkshire.
Fobney Lock was built between 1718 and 1723 under the supervision of the engineer John Hore of Newbury, and this stretch of the river is now administered by British Waterways and known as the Kennet Navigation. It has a rise/fall of 7 ft 8 in (2.24 m). There is also an adjacent pumping station which ensures the lock has sufficient water levels.
There have been ongoing plans to turn Fobney Island, adjacent to the lock, into a wetlands nature reserve.